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| H-bridge DC motor driver with OPAMP as gate driver? |
| << < (5/5) |
| Zero999:
The example shown above is for a device with an open emitter output, which can only pull-up. The LM393 has an open collector output, so the circuit needs to be modified accordingly. |
| Yansi:
If you go this far with boosting the output stage, why not simply gtfo with the comparator and replace it with just a single small signal n-mos transistor with much better result? |
| David Hess:
--- Quote from: Yansi on June 28, 2019, 07:07:48 am ---If you go this far with boosting the output stage, why not simply gtfo with the comparator and replace it with just a single small signal n-mos transistor with much better result? --- End quote --- I assumed there was some issue with the input voltage threshold needing to be more precise than the Vgs of a MOSFET would be. |
| ArthurWozniak:
Hey, Do you consider use DRV family? There are complete solutions for small current DC motors such yours If not, IR2104 gate driver is awesome Best regards, |
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